Pessimism may undergo an expression.Logical formLearned from17 sentences. (Virulence genes) may undergo an expression.Logical formLearned from17 sentences. An (expression system) can be bacterial.Logical formLearned from17 sentences. An expression can be cool.Logical formLearned from17 sentences. A subject may undergo an expression.Logical formLearned from17 sentences. Expressions can be emphatic.Logical formLearned from17 sentences. A facility can be constituted-of-or-filled-with expression.Logical formLearned from17 sentences. Authority may undergo an expression.Logical formLearned from17 sentences. An expression may pertain-to a child.Logical formLearned from17 sentences. Shame may undergo expressions.Logical formLearned from17 sentences. A mind may undergo expressions.Logical formLearned from17 sentences. A belief may undergo expressions.Logical formLearned from17 sentences. Facial expressions can be dramatic.Logical formLearned from17 sentences. An expression can be surly.Logical formLearned from17 sentences. Expressions may be developed.Logical formLearned from17 sentences.